I do not seem to get what you are saying, he is talking about bank but you are talking about centralized exchanges, banks are centralized too but they are not the same as exchanges because all of us use bank. People have different means of savings, but he go with the opinion that people should have fixed deposit in a way the money will not be accessible for sometimes so that he will not be able to spend it, there is nothing like centralized exchange or coins that he talked about.
Thank you for understanding the exact meaning of what I was saying. Some members reply without even reading what other has written.
Anyways my point is regarding savings. You can have your savings even in bitcoin but there is some difference in that strategy. Bitcoin price go up and down with time. Unlike banks you (may or may not) have to wait if you are looking to get your capital back. While in Banks cash is available instantly. You need to understand pros and cons of both strategies before making a choice.